Come and see our amazing products. The glass is made of 100% high borosilicate glass, non-toxic and BPA-free.The straw is made of food-grade 304 stainless steel,rust-proof and tasteless. Made of safe and harmless materials, both adults and children can use it with confidence.These sublimation glass cup can be used for DIY, you can design beautiful patterns on the glass,with stainless steel straws, as gifts for your friends, family, lover, colleagues. It will be a very perfect gift. Pls confirm with us about the packing info, stock color and exact production time before placing your order.